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To find the mean, sum all the values and divide by the number of values.
Values: 17, 17, 14, 31, 33, 35, 45, 65, 20, 58
Sum = 17 + 17 + 14 + 31 + 33 + 35 + 45 + 65 + 20 + 58 = 335
Number of values (n) = 10
Mean (μ) = Sum / n = 335 / 10 = 33.5
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